The arbuscular mycorrhizal fungus Glomus mosseae gives contradictory effects on phosphorus and arsenic acquisition by Medicago sativa Linn

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	The arbuscular mycorrhizal fungus Glomus mosseae gives contradictory effects on phosphorus and arsenic acquisition by Medicago sativa Linn
	Chen, Baodong ; Xiao, Xueyi ; Zhu, Yong-Guan ; Smith, F. Andrew ; Xie, Z. Miao ; Smith, Sally E.
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2007-07-01
卷号	379 期号:1 页码:226-234
关键词	alfalfa arbuscular mycorrhiza phosphorus arsenic
英文摘要	Mycorrhizal fungi may play an important role in protecting plants against arsenic (As) contamination. However, little is known about the direct and indirect involvement of arbuscular mycorrhizal fungi (AMF) in detoxification mechanisms. A compartmented pot cultivation system ('cross-pots') is used here to investigate the roles of AMF Glomus mosseae in plant phosphorus (P) and As acquisition by Medicago saliva, and P-As interactions. The results indicate that fungal colonization dramatically increased plant dry weight by a factor of around 6, and also substantially increased both plant P and As contents (i.e. total uptake). Irrespective of P and As addition levels, AM plants had shoot and root P concentrations 2 told higher, but As concentrations significantly lower, than corresponding uninoculated controls. The decreased shoot As concentrations were largely due to "dilution effects" that resulted from stimulated growth of AM plants and reduced As partitioning to shoots. The study provides further evidence for the protective effects of AMF on host plants against As contamination, and have uncovered key aspects of underlying mechanisms. The possible application of AMF in remediation practices is discussed. (c) 2006 Elsevier B.V. All rights reserved.
WOS记录号	WOS:000247354700011
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/22391]
专题	生态环境研究中心_城市与区域生态国家重点实验室
推荐引用方式 GB/T 7714	Chen, Baodong,Xiao, Xueyi,Zhu, Yong-Guan,et al. The arbuscular mycorrhizal fungus Glomus mosseae gives contradictory effects on phosphorus and arsenic acquisition by Medicago sativa Linn[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2007,379(1):226-234.
APA	Chen, Baodong,Xiao, Xueyi,Zhu, Yong-Guan,Smith, F. Andrew,Xie, Z. Miao,&Smith, Sally E..(2007).The arbuscular mycorrhizal fungus Glomus mosseae gives contradictory effects on phosphorus and arsenic acquisition by Medicago sativa Linn.SCIENCE OF THE TOTAL ENVIRONMENT,379(1),226-234.
MLA	Chen, Baodong,et al."The arbuscular mycorrhizal fungus Glomus mosseae gives contradictory effects on phosphorus and arsenic acquisition by Medicago sativa Linn".SCIENCE OF THE TOTAL ENVIRONMENT 379.1(2007):226-234.